Exam 70-480 topic 1 question 23 discussion

Actual exam question from Microsoft's 70-480

Question #: 23
Topic #: 1

You need to test the value of the following variable in JavaScript. var length = "75";
A block of code must execute if the length equals 75 regardless of the data type.
You need to use the statement that meets this requirement.
Which lines of code should you use? (Each correct answer presents a complete solution. Choose two.)

A. if (length = = = 75)
B. if (length = = 75)
C. if (length! = 75)
D. if (length = = "75")

Show Suggested Answer

Suggested Answer: BD 🗳️
When comparison is made using double-equals operator (==), it will check the values of variable and convert them to a common type and returns true if both are equals. So comparing number with string having the same value will return true.
Examples:
examples:
console.log(23 == "23"); // true
console.log(1 == true); // true
Incorrect Answers:
not = = =: This is "strict" or "identical" equality.
Reference: JavaScript Triple Equals Operator vs Double Equals Operator ( = = = vs = = )

by JMz123 at Oct. 22, 2019, 8 p.m.

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superhands

5 years, 1 month ago

technically none of the options are correct due to the fact that spaces in-between the equal signs will not work in the browser. i guess the intention is to just pretend the spaces are not there

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JMz123

5 years, 7 months ago

Wow. Most (all?) programming languages do not allow spaces in '==' or '===' or '!='. In addition, best practice is to leave a space around the operators. To wit, if ( 77 == value )

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Exam 70-480 topic 1 question 23 discussion

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